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Finding the Fourth Proportional to 84,944.40, 127,513.80 and 49,903.80

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Solution

The fourth proportional to 84,944.40, 127,513.80 and 49,903.80 is: 74,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,944.40 : 127,513.80 = 49,903.80 : x
  2. Step 2: Convert to fraction form
    84,944.40/127,513.80 = 49,903.80/x
  3. Step 3: Cross multiply
    84,944.40x = 127,513.80 × 49,903.80
  4. Step 4: Simplify right side
    84,944.40x = 6,363,423,172.44
  5. Step 5: Solve for x
    x = 6,363,423,172.44/84,944.40
  6. Step 6: Final answer
    x = 74,912.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.